221534452012005 has 48 divisors (see below), whose sum is σ = 418925328307200. Its totient is φ = 107404535952000.

The previous prime is 221534452011959. The next prime is 221534452012043. The reversal of 221534452012005 is 500210254435122.

221534452012005 is a `hidden beast` number, since 2 + 2 + 1 + 5 + 3 + 4 + 4 + 520 + 120 + 0 + 5 = 666.

It is not a de Polignac number, because 221534452012005 - 2¹⁴ = 221534451995621 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4003546 + ... + 21426555.

It is an arithmetic number, because the mean of its divisors is an integer number (8727611006400).

Almost surely, 2^{221534452012005} is an apocalyptic number.

It is an amenable number.

221534452012005 is a deficient number, since it is larger than the sum of its proper divisors (197390876295195).

221534452012005 is a wasteful number, since it uses less digits than its factorization.

221534452012005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25447722 (or 25447719 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 221534452012005 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred fifty-two million, twelve thousand, five".